Polypodium scouleri

The leathery polypody of the Pacific coast from British Columbia to Baja California, growing in cracks on sea bluffs, on dunes, and on trees and rocks in fog-bathed coastal forest. It wants cool, very humid air, moderate light and sharp drainage, and it tolerates salt spray.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on trees (epiphyte)

Where it grows wild

Rock crevices on coastal bluffs, beach dunes and trunks or logs in oceanside forest, often in heavy fog and salt spray.

Almost all records are near sea level (median about 30 m); the 5,300 m maximum is an error.

British ColumbiaWashingtonOregonCaliforniaMexico NorthwestMexican Pacific Is.

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.